HT201257: Using Apple Hardware Test

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BookX

Level 1 (10 points)

Q: Press and hold the D key before the gray startup screen appears? It must be C, not D, right?

Press and hold the D key before the gray startup screen appears? It must be C to perform hardware test, not D, right?

Posted on Mar 14, 2012 2:32 AM

I have this question too

Solved

Level 10 (94,603 points)

iPhone

A:

Did your Mac ship with DVD's? If so, that's why. The AHT is on your DVD...did you read the whole article I referenced you?

Posted on Mar 14, 2012 3:12 AM

Q: Press and hold the D key before the gray startup screen appears? It must be C, not D, right?

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by wjosten,

wjosten Mar 14, 2012 2:36 AM in response to BookX
Level 10 (94,603 points)

iPhone

Mar 14, 2012 2:36 AM in response to BookX

No.

Read here:

http://support.apple.com/kb/HT1509
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by BookX,

BookX Mar 14, 2012 2:58 AM in response to wjosten
Level 1 (10 points)

Mar 14, 2012 2:58 AM in response to wjosten

It doesn't work on my Mac Pro... why? This is very strange.
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by wjosten,Solvedanswer

wjosten Mar 14, 2012 3:12 AM in response to BookX
Level 10 (94,603 points)

iPhone

Mar 14, 2012 3:12 AM in response to BookX

Did your Mac ship with DVD's? If so, that's why. The AHT is on your DVD...did you read the whole article I referenced you?
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by BookX,

BookX Mar 14, 2012 9:24 PM in response to wjosten
Level 1 (10 points)

Mar 14, 2012 9:24 PM in response to wjosten

That's the thing, it wasn't doing it with DVD or without... However, I solved it by installig a third party RAM checker and is okay. Thanks for hepling!

It turned out my MAC boot up too fast into the gray screen and I wasn't holding the "D" key long enough... I found out about it after I've installed the third party RAM checker.
Best regards.
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